Burner for oil-lamps.



No. 820,068. PATENTED MAY 3, 1906.

J. SHARPLBS.

BURNER FOR OIL LAMPS.

APPLICATION FILED 0431. 3. 1905.

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UNITED STATEEaLlENT OFFICE.

JAMES SHARPLES, OF BIRMINGHAM, ENGLAND.

BURNER FOR QiL-LAMPS.

To wit when-t it may concern Be it known that I, JAMES SnARrLEs, lampmanufacturer, 3. subject of His Majesty the King of Great Britain andIreland, residing at 699 Coventry road, Birmingham, England, haveinvented new and useful iih rove ments Connected with Certain Kinds ofurners for Oil-Lamps, of which the following is a specification.

This invention has reference to oil-lamp burners of the kind describedin the specification in connection with my Letters Patent of the UnitedStates, No. 662,826, dated November 27, 1900. In this kind of burnermeans are provided for extin uishing the flame consisting of a funnelwhidh is closed at the bottom and open at the top and surrounds theupper part of the Wick-tube above the winder and is so shaped as to forma narrow opening all round the top of the wicktube, this funnel having aside air-inlet tube at its lower part, which is closed by a suitableplug or valve. This air-inlet tube is closed when the lamp is burning,and then a large percentage of the oxygen from the interior of thefunnel rises up and is consumed by the flame, so that in order toextinguish the lamp the air-inlet has to be opened quickly, so that theheated air which is contained in the funnel and which contains but asmall percentage of oxygen then rises rapidly and hoping- V Heretoforein practice the small air-inlet tube has brim closed by a small capconnected thereto by a chain; but this is not altogether satisfactory,as it sometimes happens that the cap fits the tube too tightly, and thenwhen the tube has expanded by the heat the cap cannot be removedquickly, and, moreover, the cap is liable to be lost, and then the lampwill not burn properly.

My present invention is directed to provide an improved device forquickly opening and closing the said air-inlet, which device cannotbcoine detached from the air-inlet itself, and if the lamp besufficiently air-inlet is thereby automatically the lamp extinguished.

I will describe my invention by referring to the accompanying drawings,on which Figure 1 is a sectional elevation of the burner and upper partoil-lamp constructed invention described in my opened and in accordancewith'thc Speeification of Letters Patent. Application filed October 3,1905. Serial No. 281.155.

of the oil vessel of a fiat-Wick tilted or upset the f i the flame andextinguish Patented Bitty 8, 1906.

resent invention. Fig. 2 shows the same urner and upper part of the oilvessel tilted with the air-inlet tube opened; and Fig. 3 also shows thesame burner tilted, but at right angles to the position shown by Fig. 2,this Fig. 3 also showing the air-inlet opened to extinguish the lamp.

The same reference-letters indicate the same parts in all the figures. V

c is the oil vessel. 2 is the wick-tube. c is the Wick-winder. d is thefunnel, which; according to my prior patent above referred to isprovided round the wick-tube b and extends to about the top of the same,the funnel being closed, forming an air space or cavity c round thewick-tube, which, as aforesaid, when the lamp is burning contains but asmall percentage of oxygen. f is the air-inlet tube, which communicatesat one end with the cavity or space 6 and is open at the other end g.

In carrying out my present invention I provide at the open end g of theinlet-tube a lap-valve it, which by gravity caused to lie against andclose the open or outer end 9 of the tube f. This outer end 9 of thetube 7 is cut off, as shown in Fig. 1, rather inclined to the vertical,so that the flu i-valvc h is not quite vertical, but hangs and liesagainst and porperly closes the open end 9 oi the tube f. In the upperpart of the flap-valve it above the open end 9 of the tube there is ahole 11 in the valve, through which passes a wire loop fixed to the sideof the burner, thus constituting a loosely-him ged connection of thevalve h to the burner: but the hole i is made so large that theflap-valve It can readily move in almost any direction. When the lamp isburning and it is desired to extinguish the flame, all that is necessaryto be done is to lift the flap-valve h, as indicated by the dotted linesin Fig. 1, m. to turn the flap-valve through a short distance sidewise,as shown in Fig. 3, so as to expose the open end g of the tube, when theinrush of air through the tube and intothe jl'unnel will cause the hadair in the cavity'of thefunnel d to rise up around it. Moreover, if

the lamp n lted to one side, as in Fig. 2 or Fig. 3, orb lapse-t thelamp will be immedi= ately extihgnished, as the flap-valve h inmaintaining its vertical position causes the open end g'of the tube tobe exposed, so that prior Letters Ifati the air can rush in andextinguish the flame out, No. 662,826, and also provided withniy i asaforesaid.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. A burner comprising a wick-tube, an

imperforated funnel surrounding the same so 5 as to form an air-chamber,a passage leading to the lower part of said chamber and means closingsaid passage to the outside atmosphere, said means opening said passageautomatieally when the lamp is tilted or upset.

2. In an oil-lamp burner of the kind herein referred to which has afunnel closed at the bottom and surrounding the upper part of thewick-tube above the winder and forming 1 a narrow opening all round thetop of the I5 Wick-tube With a side air-inlet tube at the I bottom ofsaid funnel, the combination with said air-inlet tube and funnel of a Ha-valve hanging loosely from a hinge above t e inlet end of said tube soas to close the same and adapted to automatically open the passage whenthe lamp is tilted, substantially as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

JAMES SHABPLES. Witnesses (JHARLEs BOSWORTH KETLEY, THOMAS JOHN ROWE.

